add autoconf boilerplate and cgmanager fns

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Add base lxcfs.c

So far it just does getattr and readdir for /cgroup/*

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Merge pull request #1 from hallyn/serge.2

Implement basic getattr/readdir